RT Journal Article SR Electronic T1 Biopsy pathology of the liver JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1029 OP 1029 DO 10.1136/gut.30.7.1029 VO 30 IS 7 A1 Portmann, B C YR 1989 UL http://gut.bmj.com/content/30/7/1029.1.abstract AB